This system is FDA certified.  It duplicates the body’s natural process for achieving and maintaining an erection.  This pump is the number one FDA certified method to use for impotence and erectile dysfunction.  This vacuum system uses negative pressure to draw blood into the penis through arteries naturally used for an erection.  When it fills with enough blood to become erect, a tension system is placed on the base of the penis and keeps it erect.  After climax removing the tension system allows the penis to return to its normal, non-erect state.  This vacuum also lengthens and thickens the penis in the erect, flaccid, or soft state.